Arhur Maia
type: MusicGroup
genre: brazilian jazz
genre: jazz fusion
popularity: 8
followers: 418
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2dfa5f30e587626c3a08632093c55789e51ee12d6dd9b4c0160ffaa1304ed0aa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eb17d32c-9aa7-439b-9651-2ca4edca6fd4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eb17d32c-9aa7-439b-9651-2ca4edca6fd4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/eb17d32c-9aa7-439b-9651-2ca4edca6fd4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2dfa5f30e587626c3a08632093c55789e51ee12d6dd9b4c0160ffaa1304ed0aa","name":"Arhur Maia","registered_at":"2026-06-21T10:26:05Z","symbol":"NIM1898283","token_address":"0xd0280664d3617483bc3bcefc8275af9816122587","type":"artist","uuid":"eb17d32c-9aa7-439b-9651-2ca4edca6fd4"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dfa5f30e587626c3a08632093c55789e51ee12d6dd9b4c0160ffaa1304ed0aa. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb17d32c-9aa7-439b-9651-2ca4edca6fd4.json and https://artists.proofprofile.net/proofs/artist/eb17d32c-9aa7-439b-9651-2ca4edca6fd4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x2dfa5f30e587626c3a08632093c55789e51ee12d6dd9b4c0160ffaa1304ed0aa","name":"Arhur Maia","registered_at":"2026-06-21T10:26:05Z","symbol":"NIM1898283","token_address":"0xd0280664d3617483bc3bcefc8275af9816122587","type":"artist","uuid":"eb17d32c-9aa7-439b-9651-2ca4edca6fd4"}
album: Arthur Maia
  type: MusicAlbum
  date published: 1996-02-01
  track: Arthur E O Gigante
    type: MusicRecording
    duration: PT5M8S
    duration ms: 308773
    explicit: false
    by artist: Arhur Maia
    in album: Arthur Maia
      type: MusicAlbum
      date published: 1996-02-01
    genre: brazilian jazz
    genre: jazz fusion
    isrc code: BROOB2200224
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T12:14:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9465bee22644707b715102a934adff8d7c7934a593c408451f1258cf1ead2ed4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958286
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958286
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BROOB2200224
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T12:43:37Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9465bee22644707b715102a934adff8d7c7934a593c408451f1258cf1ead2ed4. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BROOB2200224.
      date published: 2026-07-16T12:43:37Z
    audio: Arthur E O Gigante
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.854
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.449
      additional property: Energy
        type: PropertyValue
        value: 0.419
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.605
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.333
      additional property: Liveness
        type: PropertyValue
        value: 0.313
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.604
      additional property: Loudness (dB)
        type: PropertyValue
        value: -18.948
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major